pick·er /ˈpɪkɚ/
  啄者,啄物,採摘者
  picker
  檢出器
  Pick·er n.
  1. One who, or that which, picks, in any sense, -- as, one who uses a pick; one who gathers; a thief; a pick; a pickax; as, a cotton picker. “Pickers and stealers.”
  2. Mach. A machine for picking fibrous materials to pieces so as to loosen and separate the fiber.
  3. Weaving The piece in a loom which strikes the end of the shuttle, and impels it through the warp.
  4. Ordnance A priming wire for cleaning the vent.
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  picker
       n 1: a person who chooses or selects out [syn: chooser, selector]
       2: someone who gathers crops or fruits etc.